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Upper Gastrointestinal Series (GI)

Description:
An upper gastrointestinal (GI) series, commonly called a GI series, is a procedure that obtains X-ray images of the gastrointestinal tract (esophagus, stomach, and small intestine) after the ingestion of contrast, liquid called barium sulfate, which coats the walls of the GI tract and enhances the images.

What to Expect During a GI Series:

Prior to the X-rays being taken, you will be asked to drink the liquid barium mixture. As the barium mixture flows through your gastrointestinal tract, you will be asked to turn into different positions while on the X-ray table and some gentle pressure may be applied to your abdomen. The table also may be slightly tilted while some of the images are taken. Following this procedure, it is normal for the barium to give a whitish color to your stool for a day or two. Some patients may experience constipation. If this occurs, consult your physician who may tell you to increase your water intake or to take a laxative. The time that it takes to complete a GI series varies according to the extent of the study that has been ordered. Allow about one hour for a GI series.

Patient Preparations for a GI Series:

Do not eat or drink after midnight the night before the exam. Do not chew gum or smoke after midnight. Do not take medications on the day of your exam — unless specifically instructed to do so by your physician. Make sure to bring a list of medications, dosage, and how often take. If a barium enema was done the day before, drink one 8 ounce bottle of Citrate of Magnesium following the barium enema.